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Harris County FWSD 47

Sewage treatment plant, City Of Houston, Texas. NPDES permit TX0022462, in force until Jul 21, 2028. Last 12 months: over a limit 8 times (last September 2026), 3 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (17 values)
Renewal application due
Jan 23, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
15 values over a limit, 0 required values missing, 5 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], daily average15.6 mg/L≤ 10 mg/L56%
November 2025BOD, carbonaceous [5 day, 20 C], daily average11.3 mg/L≤ 10 mg/L13%
December 2025BOD, carbonaceous [5 day, 20 C], daily average16.7 mg/L≤ 10 mg/L67%
December 2025BOD, carbonaceous [5 day, 20 C], daily maximum39.4 mg/L≤ 25 mg/L58%
February 2026Nitrogen, ammonia total [as N], daily average12 mg/L≤ 9 mg/L33%
April 2026Nitrogen, ammonia total [as N], daily average10.12 mg/L≤ 9 mg/L12%
June 2026Enterococci, daily maximum548 CFU/100mL≤ 104 CFU/100mL427%
September 2026Nitrogen, ammonia total [as N], daily average11.5 mg/L≤ 9 mg/L28%

Limits in force (17)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 40 mg/Lall year
Solids, total suspendeddaily average≤ 65 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 9 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 39 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .52 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly minimum≥ 1 mg/Lall year
Chlorine, total residualmonthly maximum≤ 4 mg/Lall year
Enterococcidaily average≤ 35 CFU/100mLall year
Enterococcidaily maximum≤ 104 CFU/100mLall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 43 lb/dall year

How strict are these limits?

Cited limits by parameter: Texas's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0022462 · MCP: https://passage-data.com/mcp